PHOTOCURABLE CONDUCTIVE PASTE AND PHOTOCURABLE BLACK PASTE USED FOR FORMING BUS ELECTRODE HAVING TWO-LAYER STRUCTURE, AND PLASMA DISPLAY PANEL

摘要

A photocurable conductive paste (A), which is used for forming upper layers of bus electrodes (4a, 4b) having a two-layer structure with different contrasts, contains a glass powder (A1) having a softening point higher, by 40‹C or more, than that of a glass powder (B1) of a photocurable black paste (B) used for forming lower layers, a conductive powder (A2), an organic binder (A3), a photopolymerizable monomer (A4) and a photopolymerization initiator (A5). The photocurable black paste (B) used for forming lower layers of the bus electrodes (4a, 4b) contains the glass powder (B1) having a softening point lower, by 40‹C or more, than that of the glass powder (A1) of the photocurable conductive paste (A) used for the upper layers, a heat-resistant black pigment (B2), an organic binder (B3), a photopolymerizable monomer (B4) and a photopolymerization initiator (B5). Consequently, stable interlayer conductivity can be obtained in the lower layer of the bus electrode having a two-layer structure. ® KIPO & WIPO 2009